ZIP code 94404
Where is ZIP code 94404?
San Mateo, California
San Mateo County · Standard ZIP code
ZIP code 94404 belongs to San Mateo, California in San Mateo County. 94404 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area code 650. About 35,881 people live in the 94404 area, where the median household income is $192,332. The closest ZIP codes are 94065 (Redwood City, 1.8 mi southeast), 94403 (San Mateo, 1.9 mi southwest) and 94002 (Belmont, 2.8 mi southwest).
| ZIP code | 94404 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | San Mateo |
| Also accepted | Foster City |
| State | California (CA) |
| County | San Mateo County |
| Time zone | Pacific Time · now |
| Area code | 650 |
| Coordinates | 37.5538, -122.27 map |
| 3-digit prefix | 944 |
Population and income in 94404
| Population | 35,881 · higher than 74% of California ZIP codes |
|---|---|
| People per square mile | 8,249 · higher than 87% of California ZIP codes |
| Median age | 39.8 years · lower than 51% of California ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $192,332 · higher than 95% of California ZIP codes |
| Income per person | $99,796 |
| Below the poverty line | 4.3% |
| Bachelor’s degree or higher | 74% of adults 25+ |
| Median home value | $1,714,400 · higher than 94% of California ZIP codes |
| Median rent | $3,501 a month |
| Housing units | 15,350 |
| Households | 14,717 (2.42 people on average) |
| Owners / renters | 51% / 49% |
| Land area | 4.35 sq mi (plus 0.57 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 94404. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 94404
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 94065 | Redwood City, CA | 1.8 mi SE | Standard |
| 94403 | San Mateo, CA | 1.9 mi SW | Standard |
| 94002 | Belmont, CA | 2.8 mi SW | Standard |
| 94402 | San Mateo, CA | 3.2 mi W | Standard |
| 94401 | San Mateo, CA | 3.2 mi NW | Standard |
| 94497 | San Mateo, CA | 3.3 mi SW | Unique |
| 94070 | San Carlos, CA | 3.9 mi S | Standard |
| 94010 | Burlingame, CA | 5.4 mi W | Standard |
| 94011 | Burlingame, CA | 5.7 mi W | PO Box only |
| 94063 | Redwood City, CA | 6 mi SE | Standard |
| 94061 | Redwood City, CA | 6.5 mi S | Standard |
| 94128 | San Francisco, CA | 7.6 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 94404 or measure the distance to another ZIP code.
How to address mail to 94404
123 MAIN ST
SAN MATEO CA 94404
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts FOSTER CITY as the city name for 94404. Adding the 4-digit ZIP+4 code (94404-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in San Mateo, CA
All San Mateo ZIP codes with population and income →
Questions
- What city is ZIP code 94404?
- 94404 is a San Mateo, California ZIP code. Foster City is also accepted as the city name.
- What county is 94404 in?
- ZIP code 94404 is in San Mateo County, California.
- What time zone is ZIP code 94404 in?
- 94404 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 94404?
- Phone numbers in ZIP code 94404 use area code 650.
- What is the population of ZIP code 94404?
- About 35,881 people live in ZIP code 94404, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 94404?
- The median household income in 94404 is $192,332 a year, higher than 95% of California ZIP codes.
- What ZIP codes are near 94404?
- The nearest ZIP codes to 94404 are 94065 (Redwood City, 1.8 miles), 94403 (San Mateo, 1.9 miles), 94002 (Belmont, 2.8 miles) and 94402 (San Mateo, 3.2 miles).